填空题

It is important that the environment (protect) ______.

【参考答案】

(should) be protected
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填空题
On his way home he suddenly remembered that he (not lock) ______ the door of the office.
单项选择题
A．Yes, I know you.B．Of course, if you like.C．Glad to meet you.D．See you tomorrow.
A．Yes, I know you.
B．Of course, if you like.
C．Glad to meet you.
D．See you tomorrow.
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